Our complete range of simple-to-use, no-nonsense products helps you balance, sanitize and treat your spa—it's everything you need and nothing you don't. With HTH™ your spa is always clean, safe and ready when you are. For generations, HTH™ has been leading the way in smart spa care. We do the chemistry so you can just take it easy.

Dive into the world of HTH™ pool and spa chemicals, designed to keep your pool and spa sparkling clean. Browse HTH™ and find a retail store near you today!

Browse HTH's™ wide variety of spa care products to keep your spa crystal clear. Explore all of our hot tub chemicals and find a retail store near you today!

Maintaining spa water takes work, but HTH™ is here, every step of the way. From sanitizing to safety, find easy how-to’s and helpful info. Plus, you can also download our FREE Spa Care Guide, so you can always have easy solutions on hand.

This HTH Spa Clear Chlorinating Sanitizer helps protect hot tub water against chlorine loss, which optimizes the comfort and use of your pool with no sediment. With the minimum available chlorine of 45% with the active ingredient Dichlor, this spa care chemical is an essential for proper maintenance so you can soak and relax all season long.

Spa 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz

HTH Spa Clear Chlorinating Sanitizer controls algae, kills bacteria and destroys contaminants. For best results, use HTH Spa Clear Chlorinating Sanitizer as part of your regular HTH Spa care routine.

HTH Spa Bromine Tabs not only disinfect and sanitize your spa and hot tub but they also create softer feeling water for total relaxation. Use these convenient tabs to keep your spa water clean clear and ready for relaxation.

Rely on this convenient and easy-to-use hot tub sanitizer to control algae, kill bacteria and destroy contaminants so you can get the most out of your spa. Creates more comfortable water. Our hot tub sanitizer protects water against chlorine loss for more comfortable water with no sediment. Compatible with chlorine-based spas.

Shop HTH 2.25-lb Low Odor Spa and Hot Tub Chemical Sanitizer Spa Chlorine 86134 in the Hot Tub & Spa Chemicals department at Lowes.com